curl --request POST \
  --url http://localhost:3000/api/conversations/{id}/end \
  --header 'Authorization: Bearer <token>'

{
  "id": "<string>",
  "organizationId": "<string>",
  "agentId": "<string>",
  "mastraThreadId": "<string>",
  "messageCount": 123,
  "status": "pending",
  "startedAt": "2023-11-07T05:31:56Z",
  "createdAt": "2023-11-07T05:31:56Z",
  "updatedAt": "2023-11-07T05:31:56Z",
  "userId": "<string>",
  "contactId": "<string>",
  "title": "<string>",
  "lastMessageAt": "<string>",
  "endedAt": "<string>"
}